Uric acid, uric acid dihydrate, and urates in urinary calculi, ancient and modern.
Uric acid, uric acid dihydrate, and ammnoniumn acid urate occur in bladder stones both ancient and modern. They are seldomn abuindant in stones fromn technically developed areas. Urates are usually confined to children's endemic bladder stones; uric acid dihydrate is rare, but uric acid used to be commzinon in bladder stones from elderly men.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D066298:In Vitro Techniques; D008297:Male; D008875:Middle Aged; D014527:Uric Acid; D014545:Urinary Calculi / Q000266:history*; D014961:X-Ray Diffraction
D014527:Uric Acid